<?php
/**
 * Smarty shared plugin
 *
 * @package Smarty
 * @subpackage PluginsShared
 */

/**
 * convert characters to their decimal unicode equivalents
 *
 * @link
 *       http://www.ibm.com/developerworks/library/os-php-unicode/index.html#listing3
 *       for inspiration
 * @param $string string
 *       	 characters to calculate unicode of
 * @param $encoding string
 *       	 encoding of $string, if null mb_internal_encoding() is used
 * @return array sequence of unicodes
 * @author Rodney Rehm
 */
function smarty_mb_to_unicode($string, $encoding = null) {
	if ($encoding) {
		$expanded = mb_convert_encoding ( $string, "UTF-32BE", $encoding );
	} else {
		$expanded = mb_convert_encoding ( $string, "UTF-32BE" );
	}
	return unpack ( "N*", $expanded );
}

/**
 * convert unicodes to the character of given encoding
 *
 * @link
 *       http://www.ibm.com/developerworks/library/os-php-unicode/index.html#listing3
 *       for inspiration
 * @param $unicode integer|array
 *       	 single unicode or list of unicodes to convert
 * @param $encoding string
 *       	 encoding of returned string, if null mb_internal_encoding() is
 *        	used
 * @return string unicode as character sequence in given $encoding
 * @author Rodney Rehm
 */
function smarty_mb_from_unicode($unicode, $encoding = null) {
	$t = '';
	if (! $encoding) {
		$encoding = mb_internal_encoding ();
	}
	foreach ( ( array ) $unicode as $utf32be ) {
		$character = pack ( "N*", $utf32be );
		$t .= mb_convert_encoding ( $character, $encoding, "UTF-32BE" );
	}
	return $t;
}

?>